Railway-car side-bearing and center-bearing testing machine.



MACHINE.

J. E. OGONNOR. l

RAILWAY GAR SIDE BEARING AND CENTER BEARING TESTING APPLIOATION FILED MAILZQ 1909. V

Patented Aug. 31, 1909..

3 SHEETS-SHEET 1.

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J. P. ocoNNoR. RAILWAY OAR SIDE BEARING` AND CENTER BEARING TESTING MACHINE.

AIPLIUATIONv IILBD MAR. 29,1909.

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l J. F. o'coNNoR. RAILWAY GAR SIDE BEARING AND CENTER. BEARING TESTING MACHINE.

. APPLICATION FILED MAB..29, 1909.

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JOHN F. OCONNOB., OF CHICAGO, `IL'LIITOIS,ASSIG'N'R TO W. H. MINER COMPANY, OF CHICAGO,

y ILLINoIsf-A coRPoRA'rioNor .iLLiNois RAILWAY-CAR SIDE-BEARING' AND `('ENIER-BEARING: YTES'IING MACHINE.

Specification of Letters Patent. Patented Aug. 31, 1909.

Application filed March 29, 1909. lSerial No.` 486,426.

To all whom .it may concern:

Be it known that I, JOHN ing bar `to which a pair of `center plates orA side bearings may be secured, one on each side thereof and `adapted to oscillate horizontally like a car bolster, a load supporting head, a scale platform or load measuring device upon which said support is mounted, a load applying head for exerting pressure upon the center plates or side bearings carried by said oscillatingl bar, a pair of hydraulie cylinders, a pairof pistons 'recipro eating in said cylinders and having a cornmon connecting stem, apair of pressure indicating gages connected with said hydraulic cylinders and actuated thereby anda connection between said oscillating bar and the pistons of the hydraulic cylinders, said hydraulic cylinders having pipes connecting the saine with a watersupply under a fixed head or pressure and also( with a water `escape pipe so that whentheescape `from one of said `cylinders is open, the water pressure in the other ,cylinder willoscillate the `bar to one side and the difference of pressures indicated by the pressure gages connected with the two cylinders will show the amount of force required to be exerted at the end of the oscillating bar to overcome the frictional resistance of the center bearings or side bearings, on the oscillating bar,gandY thus the operationand efliciency or'lack of efficiency of their anti-friction devices. p

- The invention further consists in the novel construction of parts and devices and in the novel combinations of parts and devices herein shown and described.

In the accompanying drawing forming a part of this specification, Figure l is a plan view of a machine embodying my invention.v

Fig. 2 is a front elevation. Fig. 3 is a detail vertical section on lineBf-S of Fig. l. Fig. 4 is a detail sectional -view similarto Fig. 3, and t illustrating the apparatus as used in testing railway car center bearingsinstead F. OCoNNoR, a y citizen of the United States, residing in Chicago, in the county of Cook and State of Illi- `of for testing side bearings, as illustrated in Fig. 3. n

In the drawing, A represents a horizontally oscillating bai', preferably of wood, and adapted to have secured on the opposite faces thereof a pairof roller or other side bearings X orl a pair of center bearings Y, and mounted to oscillate about a pivot or tr'unnion a or aliin'the manner of a cai' bolster said-bearings X or Y being secured to said bar'by suitable bolts or clamps a2. rlhe Voscillating anti-friction bearing holding bar A is provided with a segmental cir- `cularly curved headAl, the curved face of which is struck about the center a or a1 about which the bar oscillates in testing side bearings or center bearings as the case may be; and this curved head is furnished with a `flexible or chain connection A2 for connecting the bar with the stem of thehydraulic cylinder pistons. v

The load support'C, consisting preferably of a block, restsupon the platform B of a scale, or'` other load measuring device, the platform being' connected through suitable knife-edge levers and links I) b1 with a suitable scale-beam orl other `device for indicating the amount of load or pressure exerted on the side bearings or center, bearings carried by the bar A during the testing operation.

The load applying headl) is preferably operated pair of screws D1 mountedl in .n the stationary frame of the machine, so that by turning these screws any desired amount `of load or pressuremay be applied to the side bearings or center bearingsto be tested. FF are a pair of hydraulic cylinders in communication through pipes g g1 with a "pair of. pressure: indicating gages G G1.

The pistons f f1 vof these hydraulic cylinders `are connectedtogether by a stein f2 which is furnished with a clamp or coupling f3, and connects vthrough the chain A2 and curved head A1 with the oscillating'bar A which carries the side bearings or center bearings to be tested.

. The hydraulic cylinders F F1 are connected with a water supply pipe H by a suitable connecting pipe z., each furnished with a three-way cockor valvet1 communieating with the water. supply H and with a branch outlet orescape pipe h2 which leads tothe waste pipe h3'. .'lhehydraulicl cylinders FFL and the trunnion'a ofthe bar A lio are preferably` mounted upon the scale platform B, thus eliminating :any error that Y might add to the slight movement of the scale platform in respect to said trunnion a or hydrauliccylinders F F1. .In operation,

a pair of side bearings, as shown for exaniplein Eig. 3,Vbeing secured onsthe oppo-A site faces otthe oscillating bar A and a `Water in thelei't hydrauliccylinderl may slowlyescape through the escape pipe lf,

the lright ihand hydraulic cylinder an'd 'piston under the head or. pressure` of Waterl from the supply `pipe ,H will force the 4pis-f tons to the left, and then the operator by noticing the difference ot pressures indicated l bythe -two pressure gages G Gl connectedl respectively with ,the two hydraulic cyliii-` ders d? F1, can determinethe amount of force required at the end of the bar A to overcome-the frictional resistance of the side bearings on 'the upper and lower faces of the oscillating bar A. After the test vhas beenscompleted, the :pressure of. the head D` on-tlie sidebearings lis relieved,'and the left hand cock turned to open the communication between `the supply H and the left handV cylinder, thusreturning the pistons to position lfor 5a turther operation.V Y

i Theioperation is -thesame in testing a pair of center bearings YY, the same'being Vsecured on opposite sides of a similar bar Which oscillates about a pin al extending I through the centerplates of the-centerbearings, and' which vin vthis instance, represents theflringfbolt of the car bolsten fl claim':-- Yl. A machine 4tor testing the operation'of centerbearmgs or side bearings of railway cars, comprising in combination, a Abearing carrying bar adapted to oscillateihorizontally likea car, bolster, a load support, a scaleplati'form upon Which the said support ismounted, a loadapplyring head for exerting'pressure `upon the-bearings carried by said bar,l a pair of hydraulic cylinders, a pair of pistons Areciprocating in said .cylinders .aiidhaying a stem connected with said oscillatingbar, a pair'of pressure indicating gages connected With saidhydraulicV cylinders and actuatedrthereby,the difference QfppressureY in said cylinders shown'by said gages indicatin'gthe amount of :torce :required to overcome the frictional resistance of 'the bearings .carried by said bar, substantially'as specified.. p Y Y f2.' A machinefor V,testing the operation of centerbearings'or side bearings ofrailway cars,- comprising in: combination, a bearing carrying-bar adapted to oscillate horizontallyvflike a carbolster, a ,load support, a scale' platform upon Which the said ksupport said bar, a ;pair of hydraulic cylinders, a pair of pistons reciprocating in said cylin- `dersand fhavinga stein connected With said V-oscillating bar, a pair of pressure indicating connected with said hydraulic cylinders and actuated thereby, the diiference of pressure iu said cylinders shown by said Vgages indicating the amount of force iequired to oyercoine `the' frictional resistance of the'bearings vcarried `by said bar, said bar having a segmental curved head and `a iexible connection with said piston stein,

substantially as speci tied.

3. A machine for testing the operation `of center bearings or'side bearings of rail- Way cars, comprising in combination, a bearing carrying` bai' adapted vto oscillate horizontally like a car bolster, a load support, a scale platform upon which the said support is mounted, a load applying head for exerting pressure upon tliebearings cai'- ried lby said bar, a Ipair .of hydraulic cylinyders, a'pair of pistons'reciprocating in said fcylinders and'having astem connected with -saidoscillating bar, a pair of pressure 'indicating gages connected with said hydraulic cylinders and actuated thereby, the difference of pressure in said cylinders shoWnby said gagesindicatingthe amount of force required Ito -overconie'the frictional resistance of the bearings carried by said bar, a Water supply under `pressure communicating vWith said cylinders, escape pipes `from said cylinders and valves controlling the communication of said water supply and escape pipes-With said cylinders,

substantially as specied.

4. A machine ortesting the'operation of center bearings or side bearings of railway cars, comprising in combination, a bearing carrying baradapted to oscillate horizontally vlike a car bolster, Va load support, a scaleq'platform `upon which the said support ismounted, aload applyinghead for exerting kpressure Vupon` the bearings carried by said bar, a pair of hydraulic cylinders, a pair of pistons reciprocating in said eyliiiders and .having a stem connected :with said oscillating bar, a `pair of pressure indicat-A ing Ygages connected with said hydraulic cylinders and actuated thereby, the di li'eience of pressure-in saidzcylinders shownby said gages .indicating the amount of `force 4iequired-to ovei'coine.tlie frictional resistance of the bearings carried by said bar, said bar havinga segmental curved head and a flexible connection with saidpiston stem,a Water supply under Y pressure communicating With said cylinders, escape pipes from said cylinders and valves controlling the coininiinication of said yWater supply andescape pipes Ywith .said cylinders, substantially as specified.

5. A machine for testing thev operation of center bearings or side bearings of railway cars, comprisingin combinatiom a`bearing carrying bar adapted to oscillate horizontally like a car bolster', a load support, a scale platform upon which the said support is mounted, a load applying head for exerting pressure upon the bearings carried by said bar, a pair of hydraulic cylinders, a pair of pistonsl reciprocating in said cylinders and having a stem connected with said oscillatingbar, a pair of pressure indicating gages connected with said hydraulic cylinders and actuated thereby, the difference of pressure in said cylinders shown by said gages indicating the amount of force required to overcome the frictional resistance of the bearings carried by said bar,

said hydraulic cylinders being mounted on the scale platform, substantially as specified.

6. A machine for testing the ,operation of center bearings or side bearings of railway cars, comprising in combination, a bearing carrying bar adapted to oscillate horizontally like a car bolster, a trunnion about which said bar oscillates a load support, a scale platform upon which the said support is mounted, a load applying head for exerting pressure upon the hearings carried by said bar, a pair of `hydraulic cylin-` ders, a pair of pistons reciprocating insaid cylinders and having a stem connected with said oscillating bar, a pair of pressure indicating gages connected with said hydraulic cylinders and actuated thereby, the difference of pressure in said cylinders shown by 'said gages indicating the amount of force ,required to overcome the frlctional resistance of the bearings carried by said bar, said hydraulic cylinders being mounted on the scale platform, and the trunnion about which said bar oscillates being also on the scale platform, substantially as specified.

7. A sidebearing testing machine, comprising in combination a load support, a scale platform carrying said load support, a` load applying head, a horizontally oscillating bar adapted to receive a pair of side bearings, one on each face thereof, a trunnion aboutV which said bar oscillates carried by Vsaid scale platform, a pair 'of hydraulic cylinders'and pistons and a pair of pressure gages, substantially as specified.

8. A side bearing testing machine, comprising'in combination a load support, a scale .platform carrying said load support, a load applying head, a horizontally oscillating bar adapted to receive a pair of side bearings, one on each face thereof, a trunnion about which said bar oscillates carried by said scale platform, a pair of hydraulic cylinders and pistons and a pair of pressure gages, said bar having a curved head and a fiexible connection between said bar and said pistons, substantially as specified.

JOHN F. OCONNOR.

Witnesses PEARL ABRAMS, H. M. MUNDAY. 

